alaztetik

sudo pacman -Sy postgresql
sudo -u postgres -i initdb /var/lib/postgres/data
sudo systemctl start postgresql && sudo systemctl status postgresql
sudo systemctl enable postgresql
sudo su - postgres
psql

# SQL commands

exit

alaztetik

# add following lines to the .bashrc file

alias java11='/usr/lib/jvm/java-11-openjdk/bin/java'
alias javac11='/usr/lib/jvm/java-11-openjdk/bin/javac'
alias java16='/usr/lib/jvm/jdk-16.0.1/bin/java'
alias javac16='/usr/lib/jvm/jdk-16.0.1/bin/javac'
alias jshell16='/usr/lib/jvm/jdk-16.0.1/bin/jshell'

alaztetik

import os

def create_folders(num, prefix=''):
    """Creates specified numbers of folders with a prefix in front of each"""
    for num in range(1, num+1):
        if not os.path.exists(f"{prefix}{str(num)}"):
            os.makedirs(f"{prefix}{str(num)}")

alaztetik

# make packages up to date
sudo pacman -Syu

# install Docker
sudo pacman -S docker

# start Docker service
sudo systemctl start docker.service

# stop Docker service

alaztetik

Setup for MariaDB / MySQL on Manjaro Linux

Follow these steps for a PHP-MariaDB project:

sudo pacman -S php mariadb mariadb-clients mariadb-libs
sudo mariadb-install-db
sudo systemctl enable mariadb.service
sudo systemctl start mariadb.service
sudo systemctl status mariadb.service

alaztetik

# start the server:
mongod --dbpath /path/to/data/to/be/stored --logpath /log/path/mongo.log

# enter the shell:
mongo
# or
mongos

alaztetik

package main

import (
	"fmt"
	"math"
)

func Sqrt(x float64) float64 {
	z := float64(1)
	s := float64(0)

alaztetik

Show GNU/Linux distribution information:

lsb_release -drc

prints e.g.:

Description:	Manjaro Linux

alaztetik

google-chrome update problem solved by:

sudo pamac update --aur --devel

command and updated it from version 101~ to 103~

alaztetik

# commands may need sudo

# pull MongoDB image:
docker pull mongo

# start container:
docker run -d \
--name CONTAINER_NAME \
-p LOCALHOST_PORT_NUMBER \
-e MONGO_INITDB_ROOT_USERNAME=username \